From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51327) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eYsvj-0006ZF-TK for qemu-devel@nongnu.org; Tue, 09 Jan 2018 07:23:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eYsvh-0006J7-ME for qemu-devel@nongnu.org; Tue, 09 Jan 2018 07:22:59 -0500 Received: from mail-wr0-x244.google.com ([2a00:1450:400c:c0c::244]:40434) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eYsvh-0006GN-Fh for qemu-devel@nongnu.org; Tue, 09 Jan 2018 07:22:57 -0500 Received: by mail-wr0-x244.google.com with SMTP id p17so13914631wre.7 for ; Tue, 09 Jan 2018 04:22:57 -0800 (PST) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Tue, 9 Jan 2018 12:22:35 +0000 Message-Id: <20180109122252.17670-4-alex.bennee@linaro.org> In-Reply-To: <20180109122252.17670-1-alex.bennee@linaro.org> References: <20180109122252.17670-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v2 03/20] include/fpu/softfloat: implement float16_abs helper List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: richard.henderson@linaro.org, peter.maydell@linaro.org, laurent@vivier.eu, bharata@linux.vnet.ibm.com, andrew@andrewdutcher.com Cc: qemu-devel@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Aurelien Jarno This will be required when expanding the MINMAX() macro for 16 bit/half-precision operations. Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé --- include/fpu/softfloat.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h index 52af1412de..cfc615008d 100644 --- a/include/fpu/softfloat.h +++ b/include/fpu/softfloat.h @@ -347,6 +347,13 @@ static inline int float16_is_zero_or_denormal(float16 a) return (float16_val(a) & 0x7c00) == 0; } +static inline float16 float16_abs(float16 a) +{ + /* Note that abs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float16(float16_val(a) & 0x7fff); +} /*---------------------------------------------------------------------------- | The pattern for a default generated half-precision NaN. *----------------------------------------------------------------------------*/ -- 2.15.1